A big argument is a heated dispute between two or more people. It can involve raised voices, strong emotions, and sometimes physical violence. The term 'big argument' can be broken down into two crossword solutions: ROW (3 letters) and BLOWUP (6 letters). ROW refers to a noisy quarrel or altercation, while BLOWUP is an explosive outburst of anger. Together, these two words describe a large-scale argument that is often loud and intense.